When Dr. Juliet Burke was sent to the camp of survivors on the beach by Ben, she carved an image on a tree as a sign for him.
What was that image?
The reason I ask is that the image could indicate a hint, an "Easter egg" put there by the author (J.J.Abrams?) to some other influencing work. I have an idea, but I'd like a confirmation on the image first.
update: So, to clarify. To me, that looks just like a "stylized Cyrillic Zhe" (Ж) symbol, with the associated connotations of hinting at the Strugatsky brothers' "Beetle in the anthill" - where such a symbol on an external device as well as on a subject's body was prominently featured. I take it as the hint that JJ is a fan of theirs. Their creation is really high grade.
Another hint at the cross-influence is the giant, dangerous, extremely fast-moving arachnid with hands in the "Super 8" 2011 film by JJ (though in Strugatsky's Noon universe those weren't intelligent).